Fastener.



C. A. COURTOIS.

-FASTENER.

APPLICATION FILED JAN. 28, 1913.

Y Patented Apr, 13, 1915.

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THE NORRIS PETER. CO, PHOTO-LITHQ. WASHINGTON. D. C.

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CHARLES A. GOUR'IOIS, 0F NEN YORK, N. Y., ASSIGNOR OF ONE-HALF T0 EIVIIL G. ZAUG,

OF NEW YORK, N. Y.

FASTENER.

Application filed .1 anuary 28, 1913.

To aZZ whom it may concern Be it known that I, CHARLES A. Comrrors, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Fasteners, of which the following is a specification.

This invention comprehends improve ments in fasteners and relates more particularly to those especially adapted for closing article wrappers, such as envelops, document boxes, etc.

The primary object of the invention resides in the provision of a fastener or clasp of this nature which shall be of extremely simple construction, cheap to manufacture and which will very securely close an envelop or similar container.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts, as will he hereinafter more fully described and claimed.

For a complete understanding of the invention, reference is to be had to the following description and accompanying drawings, in which,

Figure l is a fragmentary view showing a portion of an envelop having my improved fastener secured thereto; Fig. 2 is a longitudinal sectional view taken on the plane of line 22 of Fig. 1; Fig. 3 is a plan view of my fastener in its extended position; Fig. 4 shows a slightly modified form of fastener applied to an envelop; and Fig. 5 is a longitudinal sectional view taken on the plane of line 5-5 of Fig. 4.

Referring in detail to the drawing by numerals, 6 designates generally an envelop having a front wall 7, a rear wall 8 and a flap 9 hingedly secured to said front wall. The flap 9 overlaps the exterior surface of the rear wall 8 a considerable distance as is clearly shown in Fig. 1.

My improved fastener which is primarily designed for use upon envelops of this type, but which it is to be understood may be also applied to other containers, consists of a single piece of flexible metal. It comprises in its preferred embodiment, a rectangular base plate 10 having a plurality of spurs 11 formed on the edges thereof and a tongue 12 Specification of Letters Patent.

Patented Apr. 13, 1915. Serial 1%. 744,707.

of considerable length formed upon one end thereof. The base plate 10 is provided with a pair of parallel transverse slits and the metal between said slits is struck away from the plane of the plate to provide a crossover strip 13. This cross-over strip is equal 1n length to the width of the tongue 12.

The fastener is secured to the exterior surface of the wall 8 upon the line of its longitudinal center at a distance from the inner edge thereof. The fastener is secured by forcing the spurs 11 through said wall and bending them into clamping engagement with the interior surface of the same as is clearly illustrated in Figs. 1 and 2. The flap 9 is formed with an opening 14 through which the tongue 12 is adapted to project. To secure the envelop in its closed position, the tongue is run through the opening 14: and under the crossover strip 13. It will be seen that this construction provides a fastener which can be very cheaply manufactured and which will very securely hold the envelop flap over the open end of the en velop.

In Figs. a and 5 I have shown a slightly modified form of fastener which comprises a base plate 15, spurs 16 extending from the longitudinal edges thereof and a tongue 17 which extends from one end of the base plate. The base plate is formed with a pair of parallel transverse slits and the metal be tween said slits is struck a considerable distance from the plane of the plate to form the cross-over strip 18. This fastener is secured to the rear wall 19 of the envelop generally designated 20. It is secured upon the inner side of the rear wall adjacent the inner end thereof and on the line of its 1011- gitudinal center by means of the spurs 16. These spurs are forced outwardly from said wall and then bent so as to clamp the wall against the base plate. The cross-over strip 18 extends through a transverse slot formed in said wall. The tongue 21 which is carried by the front wall 22 of the envelop is formed with a transverse slot through which the crossover plate 18 projects when the tongue is folded against the wall 19. To secure the envelop tongue in this last mentioned position, it is only necessary to bend the fastener tongue 17 over the same parallel to the base plate and under the cross over strip 18.

llt will be noted that in the modified form of my invention only the fastener tongue and cross-over plate are visible when the envelop is closed.

It is to be understood that I do not Wish to be limited to these embodiments of my invention but may make such changes as shall fall Within the scope and spirit of the invention.

Having thus described my invention What I claim is d An envelop fastener comprising a substantially rectangular body portion, transversely extending triangular extensions formed at the corners of said body portion and adapted for insertion through the en- G'opies of this patent may be obtained for velop for attaching said body portion to an envelop, a tongue formed upon one end of said body, an upstanding loop formed centrally upon said body and in alinement With said tongue, said tongue adapted for insertion through an envelop sealing flap and for bending for insertion at its end beneath said loop for sealing an envelop.

In testimony whereof I afiix my signature in presence of two Witnesses.

CHARLES A. COURTOIS.

Witnesses HENRY EHRLIOI-i, PHILIP HERRMANN.

five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

